for what reason does it take so long to appear a game with 11 points or 12 points?
What do you mean? You have been playing most of your games with players rated 100 points higher than you.
As expected, you lose most of the time. (A 100 point difference gives you an expectation of a 36% win percentage.)
Your wins today were worth 11 points. They helped balance out your many losses against the higher rated players, which cost you only 5 points each and kept your rating from falling very far.
for what reason does it take so long to appear a game with 11 points or 12 points?